a5ee8183c0
The idea is that, other parts of the libc which require thread/lock support will be able to use this platform independent setup. With this change, only the linux implementation of a mutex type has been moved to the new library. Because of this, there is some duplication between the new library and src/threads/linux. A follow up change will move all of src/threads/linux to the new library. The duplication should be eliminated with that move. Reviewed By: lntue Differential Revision: https://reviews.llvm.org/D120795
24 lines
840 B
C++
24 lines
840 B
C++
//===-- Linux implementation of the mtx_unlock function -------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "src/threads/mtx_unlock.h"
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#include "include/threads.h" // For mtx_t definition.
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#include "src/__support/common.h"
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#include "src/__support/threads/mutex.h"
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namespace __llvm_libc {
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// The implementation currently handles only plain mutexes.
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LLVM_LIBC_FUNCTION(int, mtx_unlock, (mtx_t * mutex)) {
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auto *m = reinterpret_cast<Mutex *>(mutex);
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auto err = m->unlock();
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return err == MutexError::NONE ? thrd_success : thrd_error;
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}
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} // namespace __llvm_libc
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